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/*
* Copyright (C) 2012 Canonical Ltd.
* Author: Robert Ancell <robert.ancell@canonical.com>
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version. See http://www.gnu.org/copyleft/gpl.html the full text of the
* license.
*/
public enum RFKillDeviceType
{
ALL = 0,
WLAN,
BLUETOOTH,
UWB,
WIMAX,
WMAN
}
public class RFKillDevice
{
public signal void changed ();
public bool software_lock
{
get { return _software_lock; }
set
{
var event = RFKillEvent ();
event.idx = idx;
event.op = RFKillOperation.CHANGE;
event.soft = value ? 1 : 0;
if (Posix.write (manager.fd, &event, 8) != 8)
return;
}
}
public bool hardware_lock { get { return _hardware_lock; } }
public RFKillDeviceType device_type { get { return _device_type; } }
internal RFKillManager manager;
internal uint32 idx;
internal RFKillDeviceType _device_type;
internal bool _software_lock;
internal bool _hardware_lock;
internal RFKillDevice (RFKillManager manager, uint32 idx, RFKillDeviceType device_type, bool software_lock, bool hardware_lock)
{
this.manager = manager;
this.idx = idx;
_device_type = device_type;
_software_lock = software_lock;
_hardware_lock = hardware_lock;
}
}
public class RFKillManager : Object
{
public signal void device_added (RFKillDevice device);
public signal void device_changed (RFKillDevice device);
public signal void device_deleted (RFKillDevice device);
public RFKillManager ()
{
_devices = new List<RFKillDevice> ();
}
public void open ()
{
fd = Posix.open ("/dev/rfkill", Posix.O_RDWR);
Posix.fcntl (fd, Posix.F_SETFL, Posix.O_NONBLOCK);
/* Read initial state */
while (read_event ());
/* Monitor for events */
var channel = new IOChannel.unix_new (fd);
channel.add_watch (IOCondition.IN | IOCondition.HUP | IOCondition.ERR, () => { return read_event (); });
}
public List<RFKillDevice> get_devices ()
{
var devices = new List<RFKillDevice> ();
foreach (var device in _devices)
devices.append (device);
return devices;
}
public void set_software_lock (RFKillDeviceType type, bool lock_enabled)
{
var event = RFKillEvent ();
event.type = type;
event.op = RFKillOperation.CHANGE_ALL;
event.soft = lock_enabled ? 1 : 0;
if (Posix.write (fd, &event, 8) != 8)
return;
}
internal int fd = -1;
private List<RFKillDevice> _devices;
private bool read_event ()
{
var event = RFKillEvent ();
if (Posix.read (fd, &event, 8) != 8)
return false;
switch (event.op)
{
case RFKillOperation.ADD:
var device = new RFKillDevice (this, event.idx, (RFKillDeviceType) event.type, event.soft != 0, event.hard != 0);
_devices.append (device);
device_added (device);
break;
case RFKillOperation.DELETE:
var device = get_device (event.idx);
if (device != null)
{
_devices.remove (device);
device_deleted (device);
}
break;
case RFKillOperation.CHANGE:
var device = get_device (event.idx);
if (device != null)
{
device._software_lock = event.soft != 0;
device._hardware_lock = event.hard != 0;
device.changed ();
device_changed (device);
}
break;
}
stderr.printf ("idx=%u type=%d op=%d soft=%d hard=%d\n", event.idx, event.type, event.op, event.soft, event.hard);
return true;
}
private RFKillDevice? get_device (uint32 idx)
{
foreach (var device in _devices)
{
if (device.idx == idx)
return device;
}
return null;
}
}
private struct RFKillEvent
{
uint32 idx;
uint8 type;
uint8 op;
uint8 soft;
uint8 hard;
}
private enum RFKillOperation
{
ADD = 0,
DELETE,
CHANGE,
CHANGE_ALL
}
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